Study on the preparation of TiO2-Al2O3 composite support and its application in Co-Mo/TiO2-Al2O3 catalyst for hydro-desulfurization

WANG Guang-jian; LI Jia-jia; WU Chun-ze; WANG Fang

Volume 44 Issue 12

Dec. 2016

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Article Navigation > Journal of Fuel Chemistry and Technology > 2016 > 44(12): 1518-1522

WANG Guang-jian, LI Jia-jia, WU Chun-ze, WANG Fang. Study on the preparation of TiO2-Al2O3 composite support and its application in Co-Mo/TiO2-Al2O3 catalyst for hydro-desulfurization[J]. Journal of Fuel Chemistry and Technology, 2016, 44(12): 1518-1522.

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WANG Guang-jian, LI Jia-jia, WU Chun-ze, WANG Fang. Study on the preparation of TiO₂-Al₂O₃ composite support and its application in Co-Mo/TiO₂-Al₂O₃ catalyst for hydro-desulfurization[J]. Journal of Fuel Chemistry and Technology, 2016, 44(12): 1518-1522.

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Study on the preparation of TiO₂-Al₂O₃ composite support and its application in Co-Mo/TiO₂-Al₂O₃ catalyst for hydro-desulfurization

Chemical Engineering Institute, Qingdao University of Science & Technology, Qingdao 266042, China

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Corresponding author: Tel: 0532-85883839， guangjianwang@126.com
Received Date: 2016-07-01
Rev Recd Date: 2016-08-18

Available Online: 2021-01-23

Publish Date: 2016-12-10

Abstract

Abstract

A variety of TiO₂-Al₂O₃ composite support were prepared using improved sol-gel method (SG), co-precipitation method (CP), surface precipitation (PR) and mechanical kneading method (ME), and the influence of preparation methods on their physical properties were investigated. The hydro-desulfurization activity of Co-Mo/TiO₂-Al₂O₃-X catalysts prepared by impregnation method was studied. XRD, BET and SEM were used to characterize the composite support and the catalysts. Results show that the composite support prepared by SG method has uniform morphology with larger surface area, pore size and pore volume. And the monolayer or sub-monolayer of TiO₂ existed in the γ-Al₂O₃. Under the reaction conditions of 3.0 MPa of hydrogen pressure, 280℃ of reaction temperature, 4 h of reaction time, 1.4 h^-1 of the liquid space velocity and 600 of hydrogen to oil ratio, Co-Mo/TiO₂-Al₂O₃ prepared by SG method has highest hydro-desulfurization activity, and the thiophene conversion rate reached 96.6%.
- TiO₂-Al₂O₃composite support,
- hydro-desulfurization,
- sol-gel method,
- Co-Mo catalyst

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References(14)

References

[1]	GRZECHOWIAK J R,WERESZCZAKO-ZIELIŃSKA I,MROZIŃSKA K.HDS and HDN activity of molybdenum and nickel-molybdenum catalysts supported on alumina-titania carriers[J].Catal Today,2007,119(1):23-30. https://www.researchgate.net/publication/232400439_HDS_and_HDN_activity_of_molybdenum_and_nickel-molybdenum_catalysts_supported_on_alumina-titania_carriers
[2]	LU S,YUAN L.Preparation of meso-macroporous carbon nanotube-alumina composite monoliths and their application to the preferential oxidation of CO in hydrogen-rich gases[J].Appl Catal B:Environ,2012,111-112(2):492-501.
[3]	杨祝红,李立成,王艳芳,刘金龙,冯新,陆小华.磷化镍/介孔TiO₂催化剂的制备及其催化加氢脱硫性能[J].催化学报,2012,33(3):508-517. YANG Zhu-hong,LI Li-cheng,WANG Yan-fang,LIU Jin-long,FENG Xin,LU Xiao-hua.Preparation of nickel phosphide/mesoporous-TiO₂ catalyst and its hydrodesulfurization performance[J].Chin J Catal,2012,33(3):508-517.
[4]	ELEKTOROWICZ M,HABIBI S.Sustainable waste management:Recovery of fuels from petroleum sludge[J].Can J Civ Eng,2005,32(1):164-169. doi: 10.1139/l04-122
[5]	彭会左,杨运泉,王威燕,何兵,钦柏豪.超声波辅助共沉淀法制备大比表面积TiO₂-Al₂O₃复合载体[J].石油化工,2011,40(7):726-731. PENG Hui-zuo,YANG Yun-quan,WANG Wei-yan,HE Bing,QIN Bo-hao.Preparation of TiO₂-Al₂O₃ Composite support with high specific surface area by ultrasound-assisted Co-precipitation method[J].Petrkchem Technol,2011,40(7):726-731.
[6]	WEI Z,XIN Q,GUO X,SHAM E L,GRANGE P,DELMON B.Titania-modified hydrodesulphurization catalysts:I.Effect of preparation techniques on morphology and properties of TiO₂-Al₂O₃ carrier[J].Appl Catal,1990,63(1):305-317. doi: 10.1016/S0166-9834(00)81721-2
[7]	CHOI J,BAN K,CHOUNG S-J,KIM J,ABIMANYU H,YOO K S.Sol-gel synthesis,characterization and photocatalytic activity of mesoporous TiO₂/γ-Al₂O₃ granules[J].J Sol-Gel Sci Technol,2007,44(1):21-28. doi: 10.1007/s10971-007-1592-0
[8]	徐如人.分子筛与多孔材料化学[M].北京:科学出版社,2004. XU Ru-ren.Molecular Sieve and Porous Materials Chemistry[M].Beijing:Science Press,2004.
[9]	张成,王永林,杨春雁,隋宝宽,杨刚,王刚,赵国利.NiMo/TiO₂-Al₂O₃催化剂活性相表征及加氢脱硫反应性能研究[J].工业催化,2012,20(5):31-35. ZHANG Cheng,WANG Yong-lin,YANG Chun-yan,SUI Bao-kuan,YANG Gang,WANG Gang,ZHAO Guo-li.Characterization of active phase of NiMo/TiO₂-Al₂O₃ catalyst and its performance in hydrodesulphurization reaction[J].Ind Catal,2012,20(5):31-35.
[10]	DAAGE M,CHIANELLI R R.Structure-Function relations in molybdenum sulfide catalysts:The "Rim-Edge" Model[J].J Catal,1994,149(2):414-427. doi: 10.1006/jcat.1994.1308
[11]	TOPSØE H,CLAUSEN B S,CANDIA R,WIVEL C,MOERUP S.In situ Moessbauer emission spectroscopy studies of unsupported and supported sulfided Co-Mo hydrodesulfurization catalysts:Evidence for and nature of a Co-Mo-S phase[J].J Catal (United States),1981,68(2):433-452.
[12]	ÍGUTIÉRREZ-ALEJANDRE A,RAMÍREZ J,VAL L J,PEÑUELAS-GALAZA M,SÁNCHEZ-NERIA P,TORRES-MANCERA P.Activity of NiW catalysts supported on TiO₂-Al₂O₃ mixed oxides:Effect of Ti incorporation method on the HDS of 4,6-DMDBT[J].Catal Today,2005,107(44):879-884.
[13]	WANG D,LI W,ZHANG M,TAO K.Promoting effect of fluorine on titania-supported cobalt-molybdenum hydrodesulfurization catalysts[J].Appl Catal,2007,317(1):105-112. doi: 10.1016/j.apcata.2006.10.020
[14]	PAUL J,PAYEN E.Vacancy formation on MoS₂ hydrodesulfurization catalyst:DFT study of the mechanism[J].J Phys Chem B,2003,107(17):4057-4064. doi: 10.1021/jp027668f